But how i add thsi because i tried to put nmake qxmpp.pro -QXMPP_LIBRARY_TYPE=staticlib and show me error. i am using msvc2013. Show me this error : qxmpp.pro(2) : U1035: error de sintaxis : se esperaba el separador ':' o '='
Stop.
So i think i need to include of other way.

and when he say this: Note: by default QXmpp is built as a shared library. If you decide to build a static library instead, you will need to pass -DQXMPP_STATIC when building your programs against QXmpp.

I need to include this too? with qmake or only build all sorry and thx